Improvement in inside venetian blinds



l. SEAMAN.

Inside Venetian Blind.

10,157,942 Pawntedsept. 21,1875.

nix-n Www/,essex NITED STATES PATENT @.FFIGEI JOHN SEAMAN, OF ANDOVER, N. Y.; EMELINE SEAMAN, ADMINISTRATRIX, ASSIGNOR OF'ONE-HALF INTEREST TO JAMES FORD, OF SAME PLAGE.

IMPROVEMENT IN INSIDE VENETIAN BLINDS.

Specification forming part of Letters Patent No. 167,942, dated September 21, 1875; application filed February 19, 1875.

To all whom t may concern:

Be it known that I, JOHN SEAMAN, of Andover, in the county of Allegany, and State of New York, have invented certain Improvements in Window-Blinds, of which the following is a specification:

My invention relates to improvements in window-blinds, and it consists in the employment of straps, in connection with loops, and

recessed slats united by eyelets, as will be hereinafter more fully set forth.

Figure l is a perspective View of the shade with upper half open as a shade, while the lower half is partially closed as a blind. Fig. 2 is a View oi' a portion of one side of the blind, showing` the take-up or contraction in the principal strap, and the loops or supports ofthe slats. Fig.3 is a plan View ofthe head, showing the pulleys and the operating-cords. Fig. 4t is a slat prepared to be put into a shade, showing the perforation-s to receive the eyelets that attach it to the loop, and the niches or recesses in the edges. v

A is the head or top of'the shade, in which are situated the supports from which the shade is suspended, and the pulleys H H H, over which the cords used for operating the shade work. F F are straps, which pass over the supports, and extend down on the back and front of the shade, and compose theframe or principal straps which support the body. ot'

, the shade. These are connected in pairs by means of loops K of similar material to the straps F, and situated horizontally between straps F. Their length is sufficient to allow straps F to separate a distance greater than -the Width of the slat used, and attached to straps F a distance apart less than the width of the slat. Loops K are securedto straps F by means of eyelets o o o being inserted through both, and riveted down on each side. The loop is also secured to the -slat in same manner. E E are cords, used for operatingz'. e., for opening and closing the shade. They consist of pairs, one pair being attached to the straps F, near the top in front, and another pair to straps F at the back of shade, from whence they respectively pass up through the head A o ver one of the pulleys H, thence along` the top to the center, where they pass over another pulley through the head and fall in front. The third pair, G, which falls to the right of shade, passes up through the head, where one part, passing directly over a pulley, comes down to and is attached to strap F on the right front of shade, while the other part passes over the top of the head to a pulley,

and passes over the pulley down to and is attached to strap F on left front of shade. These are attached to the straps F by meansof hooks D secured to the ends ofthe cords, and hooked into eyelets in straps F. B is a slat prepared to be placed in the shade or blind. J J are perforations to receive the eyelets, which secure it to the loops. I I are niches or recesses in its edges. Thelengthot1 each recess should be equal to or greater than the width of the material composing the loop on which it works, and its depth suicient toet't'ect the desired object. Its use is to receive thc loop when in the act ot' closing the blind, and thereby prevent the loop operating as a support or rest for the lower edge of the slat, by which it is held at van angle, and prevents the closing. By the recess the slat is relieved from said support, and enabled to fall into a perpendicular position, by which it is caused to close upon its fellow, and perfects the c'losilngr.`

I claim as my inventioni In a window-blindthe straps F, in combination 4with the loops K and recessed slats B, united by eyelets, substantially as described, and for thepurpose set forth.

JOHN SEAMAN. Witnesses:

B. C. COLE,

A. O. FRIsBEr. 

